| 金银合金纳米粒子的制备 |
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| 引用本文： | 胡芳,孟卫,张燕,张玲艳,王险峰.金银合金纳米粒子的制备[J].五邑大学学报(自然科学版),2011,25(1):33-36. |
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| 作者姓名： | 胡芳 孟卫 张燕 张玲艳 王险峰 |
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| 作者单位： | 1. 中国药科大学物理化学教研室,江苏南京,211198
2. 南京理工大学化工学院,江苏南京,210094 |
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| 摘 要： | 以柠檬酸钠为稳定剂,利用硼氢化钠还原AgNO3和HAuCl4混合溶液制备了Au-Ag合金纳米粒子,UV-Vis光谱谱图只观察到一个位于纯银和纯金之间的表面等离子体共振峰,且该表面等离子体共振峰的最大吸收波长与合金中Au的摩尔分数成线性关系.TEM结果表明:Au-Ag合金纳米粒子的粒径大约为43 nm,且颜色均一,没有明...
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| 关 键 词： | 柠檬酸钠 硼氢化钠 Au-Ag合金纳米粒子 |
Synthesis of Au-Ag Alloy Nanoparticles |
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| HU Fang,MENG Wei,ZHANG Yan,ZHANG Ling-yan,WANG Xian-Feng.Synthesis of Au-Ag Alloy Nanoparticles[J].Journal of Wuyi University(Natural Science Edition),2011,25(1):33-36. |
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| Authors: | HU Fang MENG Wei ZHANG Yan ZHANG Ling-yan WANG Xian-Feng |
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| Institution: | HU Fang 1,MENG Wei 1,ZHANG Yan 1,ZHANG Ling-yan 2,WANG Xian-Feng 1(1.Department of Physics and Chemistry,China Pharmaceutical University,Nanjing 211198,China,2.School of Chemical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China) |
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| Abstract: | Gold-silver alloy nanoparticles were prepared in a solution made by reducing HAuCl4 and AgNO3 with sodium borohydride and using trisodium citrate as a capping agent.Only a surface plasmon resonance peak was observed in the UV-Vis spectra and the SPR band of Au-Ag nanoparticles shifts linearly to the red with increasing Au content.Due to TEM,nanoparticles are about 43 nm and lack an apparent core-shell structure.It is concluded that the nanoparticles are alloys rather than core-shell composites. |
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| Keywords: | trisodium citrate sodium borohydride Au-Ag alloy nanoparticles |
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